Welding line reel switch



Nov. 9, 1948. J; D. Bums 2,453,407

WELDING LINE REEL SWITCH Filed Sept. 11, 1944 2 Sheets-Sheet 1 Nov. 9, 1948. D BURNS 2,453,407

WELDING LINE REEL SWITCH Filed Sept. 11, 1944 2 Sheets-Sheet 2 rial/re 17.32045,

Patented Nov. 9, 1948 UNITED STA The present invention relates to new and useful improvements in reels for electric cables and more particularly for use in reeling and unreeling the cable ofwelding machines and themvention has for its primary object to provide a reel of this character embodying meansby which a switch for the circuit for the machine maybe opened or closed to start and stop the machine and controlled through predetermined movements of the reel. i

More specifically the invention comprises a cable reel of this character embodying switch means and stops carried by a stationary part of the reel and in which a dog carried by the reel is engageablewith the stops for closing the circuit when the dog is engaged with one of the stops and opening the circuit when the dog is engaged with another of said stops. 1

A still further object is to provide an apparatus of this character of simpleand practical construction, which is efficient and reliable in performance, relatively inexpensive" to manufacture and otherwise well adapted for the purposes for which the same is intended. I

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, refere ence being had to the accompanyingdrawings forming part hereof, wherein like numerals refer to like parts throughout, and in which: n

Figure 1 is a longitudinal sectional Iview through the reel. j

Figure 2 is a transverse sectional view take substantially on a line 2-4 of Figure 1. i t

Figure 3 is an end elevational view ofone end of the reel showing the dog carried thereby. 1'

Figure 4 is a fragmentary sectional view through the switch taken substantially on a lin 4-4 of Figure 2.

Figure 5 is a side elevational view of one of the springs for winding the reel; and

Figure 6 is an edge elevational view of one of the mountings for the springs. r

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates an open frame having trun nions 6 at opposite edges provided with insulation covers 1 and by means of which the frame may be pivotally supported on a suitable structure (not shown). y I I A shaft 8 is secured transversely of the frame by means of the brackets 9, the shaft having squared ends to secure the shaft stationary. Rotatably mounted on the shaft within the frame is a hol- ES PAT N 2,453,407 if WELDING LINE REEL SWITCH Jake DrBurns, Richmond, Calif; Application eptem er 11, a 19441; Seriai o. 553,621

2 Claims. (01. 200-153) 2 t i low reel l0 including flanges H at eachiend thereof and a tubular hub portion 12. At' one endof thereel is an end platel3 journaled on the shaft and positioned in the hub l 2 "of the reel isaplurality of discs l4 including hub portions l5 journaled on the shaft and projectingfromone side of the discs, each of the discs also havingla'n eccentric pin 16 pro-jecting from ah oppositeside thereof and towhich one end of a coil spr'ing i1 is attached, the other end of the spring being en- 20 which are also emplo yed for securing an in;

sula'tion' disc 2| in the end of the" reelbpposite from the end plate 13.

A conductor ring 22 is secured to' the o'uter sur face of the disc 2l and to whichfone endbf'a cable 23 is attached for winding on -the reel through a conventiohalform of spoolingfguide 24 mounted in theframe thespooling g uidefbeing operated'through a chain and sprocket 25 and 1 connected to the end plate l3 of the reeLf To the sidefof the frame 5 adjacent the con ductor ring 22 is secureda disc2l having an in sulation disc 28 attached to the inner face thereof and to which a conductor ring 29 is attached in wiping engagement with the conductor ring 22.

i The conductor ring 29 is provided with'a plurality of spring projected contacts ilflijrecessed infthe insulation disc 28 and having their outer 'ends bearing against the conductor ring zz to insure an effective connection between the conductor m t t: "1

A circuit wire3 l connects the conductor ringI ZS.

with the welding machine (not shown) and the operationof the machine is controlled byaswitch 32 secured to the disc 21. A hub? 33Yis attached to theinnerside of the disc 21 having a spring projected plunger M's'lidably mounted in a recess a therein and yieldably urged outwardlyby a coil spring 35,theinner end of thewplunger fbeing adapted for engaging one end of atrocker arin iitli The peripheral edge ofthe insulati formed at circumferentially spaced intervals with hook shaped portions 38 and 39, the hook shaped portion 38 bein disposed immediately adjacent the plunger 34 and adapted for engagement by the hooked end 40 of a dog 4| pivoted to the adjacent flange I l of the reel.

Accordingly during the rotation of the reel the pawl of the dog 4! is adapted for engagement with either of the hook portions 38 or 39 of the stationary hub 33 and when the pawl of the dog 4! is in engagement withthe hook portio'n 3 8,- the pawl of the'dog will engage the plunger 34 to move the same inwardly to open the switch. Accordingly, when the dog 4| is engaged with the hook 4 portion 38 the circuit will be openeand whenithe dog is engaged with the hook portion 39 the circuit will be closed.

.In order to release the dog-4l from the, hook portion 39 and to engage the hook portion 38 for opening the circuit, a slight pull is exertednon the cable by the operator tolpartially rotate the reel egalin stzthe tension of -the 'f p mg nt the doe reaches aTDOSlblOII-vShOWM' byl-the dotted lines-in fligmzefitpfthe drawings,whereby a pin fl carried tatwtherfree-emd of the-dogwill move behind an arcnateguideestri p 4 3 positioned. over the hook port/WW3!) :andsecuredctoz the disc: 2 PtO',gUid6 :the dog, pastrthe hook portion? 39,- t-hesprings operating to: rotate the reel until: the :dog'reaches theend and. a 'si'de' of thief-frame, hub,- w i'th, hook-shaped 'projections'in recesses inthe'peripher thereof extending from the periphery of the disc, a dog carrying a pawl and having a pin projecting ithereirom pivotally mountedon a flange at the end of the reel adjacent said stationary disc of the frame positioned to ride along the periphery of .thehub. and engage alternately the hook-shaped projections thereof, an arcuate guide strip attach-edto the surface of the disc positioned to of therguide' fl whereupon the dogtwill drop into I engagement with thehook tileand actuate the plungernflwofi the switch to vopen .thetcircuitnas show-n: by=,-;thef-ulll-inepesition in-Fig. ,2.

,zEit-her of the hook members :88 and. 39 when en aged by t'he: dog will serve-rte -.secure the reel :11. i l rjwiztheonei'end of the barrels-spring iseduredeto :thewstationary.-shaft and the other toathe-h-ubqof the :reel, vthevspriing will eactuate the (reel, when yeleasedtowvingd aecable thereon. The dog-with the pawl at the end functionssimi larj to correspending elements of a shade roller wherein a maiden maywstart and-stophis machine-"from .any pointaalong the =Fli-ne by pulling z. the line iso...-that tit-mill :lturn the reel through oneequarter of ia ,gagetheprojectiononthe next. turn.

;The .reel may, l therefore, be operated to ,l pay 1zhe -cab1e outer towindlthe cable thereon by the spring motorrim the (drum thereof; from .any.,point along; the. line? by a short. pull .on the ,cable or by as'slight pull. on 1 the. cable to retard ,the winding motionof thereel.

- rIttist-believedthe details of construction.- man nevioipperation and/advantagesroi. thelclevioe will herreadilyeunderstood:from thefrforegoing without turther detailedeexplanation.

V.;.'-Having.- thusrdescribedl-thednvention, what elaimis-z V a 1. In a self winding reel ion electric cablesan-d the like, the .=combination, .lwhich .eomprises a drumtwith fiangestat :the:endspmvldingnacablev be engaged by the piniof the pawl to hold the pawl -out of. engagement with ,attleastsone .o-i iihe prQJ'fictionslof the -h-ub npon ret .ction-i-oi; the cable-Winding. reel, aresiliently.held plunger. slid; ably, mountedin ,the hub .underkone ohsaidpro- ;lec.t-ions positioned to! be engaged byflthe ,pawL, a

switchpositioned, to be actuated by -said, plunger, and ,contact rings positioned. on therendsfofhthe reel and .adjacent .disc .through i which va circuit ma -cable .onthe, reel may becoin'pleted.

2. In a self-winding reel for electric icablesand the like, .the combinati-on, comprises a drum withqflan ges atthe ends pr'oviclinga cable-.- winding. reel,..a stationary shaft, means rotatably mounting-themed on. thenshaft, aframe, a..-plurality'oflspring elements positionedinthedrum of .the ,reel forming. .a spring motor with one end of .the spring elements attached to the. shaft and the opposite ends attached.fto.-.thereel,:astationary,.disc.on.the frame positioned betweenthe reel and. frame,.,a...hub ,with, hookeshaped projections in .reces's es in ,the .periphery thereof extendin from the {periphery of the. disc, ,a dog carrying. .a pawl Aandhavin'g a pin projecting, therefrom piv otally mounted on a flangelettheendoithereel adjacentsaid stationary disc. of the frame. positionedjto ride along the. periphery of. the, hub and engage ialternately .the .hookeshaped projections thereof, an arcuate ggulde ."strip I also projecting from the surface ,of the .disc positionedto be en? and contact rings positioned ,ontheiends ofthe reelanidadlflcent .discthrough which a circuit to a. cable onlthereel maybe completed...

JAKE D. onus.

REFERENCES CITED f V The following references-1 are ofzrecord in the fiieeof mthiS" patent: i

' I UNITED STATESPATENTfi Number Name 1 Date -.:45. 9, 705 -..Gr.eenfield Sept..,15,..189i rl,l00,l 3 9 (Mayers June 16,1914 41,659,293 Hermann i-Feb.-l4, 1928 1,665,737 Gough Apr. 10, .1928 1,754,012 -Watts -r Apr. 8,1930 ;1,5Z63,953 ,Gohen. June .17, 1930 .l,.803',431 Minty, May..5., 193,1 

